2nd step on 1st end offset from shaft centerline
A shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see axle(1), shouldered. For items not having any of the above conditions see pin, shoulder, headless. Excludes shaft(1), straight; and axle(1), straight.
Classification: Transmission shafts and cranks, except camshafts and crankshafts
NSN 5985-01-463-3693
NSN 7035-01-459-9598
NSN 2925-00-947-0263
NSN 6320-01-296-3181
NSN 5925-01-541-9251
NSN 6685-00-074-2471
NSN 5915-01-157-9799
NSN 6645-01-578-7959
NSN 6105-01-360-4706
NSN 5996-00-067-7624
NSN 5915-00-908-3140
NSN 5930-01-297-6966